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copper(II) oxide

chemical compound
ChemicalSubstance type_of_chemical_entity Q421787
copper(II) oxide
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copper(II) oxide

Summary

copper(II) oxide is a type of chemical entity[1]. It ranks in the top 4% of type_of_chemical_entity entities by monthly Wikipedia readership (140 views/month).[2]

Key Facts

  • copper(II) oxide's instance of is recorded as type of chemical entity[3].
  • copper(II) oxide's canonical SMILES is recorded as O=[Cu][4].
  • copper(II) oxide's chemical formula is recorded as CuO[5].
  • copper(II) oxide is a type of copper oxide[6].
  • copper(II) oxide's Commons category is recorded as Copper(II) oxide[7].
  • copper(II) oxide comprises oxygen[8].
  • copper(II) oxide comprises copper[9].
  • copper(II) oxide's described by source is recorded as Meyers Konversations-Lexikon, 4th edition (1885–1890)[10].
  • copper(II) oxide's NIOSH Pocket Guide ID is recorded as 0151[11].
  • copper(II) oxide's density is recorded as {'unit': 'Q13147228', 'amount': '+6.4'}[12].
  • copper(II) oxide's mass is recorded as {'unit': 'Q483261', 'amount': '+78.924512'}[13].
  • copper(II) oxide's melting point is recorded as {'unit': 'Q25267', 'amount': '+1446'}[14].
  • copper(II) oxide's boiling point is recorded as {'unit': 'Q25267', 'amount': '+2000'}[15].
  • copper(II) oxide's decomposition point is recorded as {'unit': 'Q42289', 'amount': '+1879'}[16].
  • copper(II) oxide's vapor pressure is recorded as {'unit': 'Q6859652', 'amount': '+0'}[17].
  • copper(II) oxide's immediately dangerous to life or health is recorded as {'unit': 'Q21077820', 'amount': '+100'}[18].
  • copper(II) oxide's time-weighted average exposure limit is recorded as {'unit': 'Q21077820', 'amount': '+0.1'}[19].
  • copper(II) oxide's subject has role is recorded as trace metal[20].
  • copper(II) oxide's associated hazard is recorded as copper(II) oxide exposure[21].
  • copper(II) oxide's safety classification and labelling is recorded as NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[22].

Why It Matters

copper(II) oxide ranks in the top 4% of type_of_chemical_entity entities by monthly Wikipedia readership (140 views/month).[2] It has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[23] It is known by 40 alternative names across languages and contexts.[24]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . PubChem. Retrieved . wikidata.org.
  3. [5] ↑ . PubChem. Retrieved . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . PubChem. Retrieved . wikidata.org.
  12. [14] ↑ . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  15. [17] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  16. [18] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  17. [19] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  18. [20] ↑ . Medical Subject Headings. Retrieved . wikidata.org.
  19. [21] ↑ . cdc.gov. cdc.gov. Provenance: wikidata.org.
  20. [22] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [23] ↑ . Wikidata sitelinks. wikidata.org.
  3. [24] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). copper(II) oxide. Retrieved May 3, 2026, from https://4ort.xyz/entity/copper-ii-oxide
MLA “copper(II) oxide.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/copper-ii-oxide.
BibTeX @misc{4ortxyz_copper-ii-oxide_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{copper(II) oxide}}, year = {2026}, url = {https://4ort.xyz/entity/copper-ii-oxide}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): copper(II) oxide — https://4ort.xyz/entity/copper-ii-oxide (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 28d ago · Nabbegat · 2026-06-19 view diff on Wikidata ↗
    Density → {'unit': 'Q13147228', 'amount': '+6.4'}
    Vapor pressure → {'unit': 'Q6859652', 'amount': '+0'}
    Unii → V1XJQ704R4
    Local thumb → —
    + 17 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||tr */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/37300|batch #37300]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.